Commit | Line | Data |
---|---|---|
8f5cfc81 | 1 | /* Copyright (C) 2001 Free Software Foundation, Inc. |
a98cef7e KN |
2 | * |
3 | * This program is free software; you can redistribute it and/or modify | |
4 | * it under the terms of the GNU General Public License as published by | |
5 | * the Free Software Foundation; either version 2, or (at your option) | |
6 | * any later version. | |
7 | * | |
8 | * This program is distributed in the hope that it will be useful, | |
9 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
10 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
11 | * GNU General Public License for more details. | |
12 | * | |
13 | * You should have received a copy of the GNU General Public License | |
14 | * along with this software; see the file COPYING. If not, write to | |
15 | * the Free Software Foundation, Inc., 59 Temple Place, Suite 330, | |
16 | * Boston, MA 02111-1307 USA | |
17 | * | |
18 | * As a special exception, the Free Software Foundation gives permission | |
19 | * for additional uses of the text contained in its release of GUILE. | |
20 | * | |
21 | * The exception is that, if you link the GUILE library with other files | |
22 | * to produce an executable, this does not by itself cause the | |
23 | * resulting executable to be covered by the GNU General Public License. | |
24 | * Your use of that executable is in no way restricted on account of | |
25 | * linking the GUILE library code into it. | |
26 | * | |
27 | * This exception does not however invalidate any other reasons why | |
28 | * the executable file might be covered by the GNU General Public License. | |
29 | * | |
30 | * This exception applies only to the code released by the | |
31 | * Free Software Foundation under the name GUILE. If you copy | |
32 | * code from other Free Software Foundation releases into a copy of | |
33 | * GUILE, as the General Public License permits, the exception does | |
34 | * not apply to the code that you add in this way. To avoid misleading | |
35 | * anyone as to the status of such modified files, you must delete | |
36 | * this exception notice from them. | |
37 | * | |
38 | * If you write modifications of your own for GUILE, it is your choice | |
39 | * whether to permit this exception to apply to your modifications. | |
40 | * If you do not wish that, delete this exception notice. */ | |
41 | ||
42 | /* This file is included in vm_engine.c */ | |
43 | ||
a98cef7e KN |
44 | \f |
45 | /* | |
46 | * Basic operations | |
47 | */ | |
48 | ||
17e90c5e | 49 | /* This must be the first instruction! */ |
46cd9a34 | 50 | VM_DEFINE_INSTRUCTION (nop, "nop", 0, 0, 0) |
a98cef7e KN |
51 | { |
52 | NEXT; | |
53 | } | |
54 | ||
46cd9a34 | 55 | VM_DEFINE_INSTRUCTION (halt, "halt", 0, 0, 0) |
a98cef7e | 56 | { |
a6df585a | 57 | SCM ret; |
3d5ee0cd | 58 | vp->time += scm_c_get_internal_run_time () - start_time; |
17e90c5e | 59 | HALT_HOOK (); |
a6df585a | 60 | POP (ret); |
17e90c5e KN |
61 | FREE_FRAME (); |
62 | SYNC_ALL (); | |
63 | return ret; | |
a98cef7e KN |
64 | } |
65 | ||
7a0d0cee KN |
66 | VM_DEFINE_INSTRUCTION (break, "break", 0, 0, 0) |
67 | { | |
68 | BREAK_HOOK (); | |
69 | NEXT; | |
70 | } | |
71 | ||
499a4c07 | 72 | VM_DEFINE_INSTRUCTION (drop, "drop", 0, 0, 0) |
a98cef7e | 73 | { |
17e90c5e | 74 | DROP (); |
a98cef7e KN |
75 | NEXT; |
76 | } | |
77 | ||
cb4cca12 KN |
78 | VM_DEFINE_INSTRUCTION (mark, "mark", 0, 0, 1) |
79 | { | |
80 | PUSH (SCM_UNDEFINED); | |
81 | NEXT; | |
82 | } | |
83 | ||
46cd9a34 | 84 | VM_DEFINE_INSTRUCTION (dup, "dup", 0, 0, 1) |
26403690 | 85 | { |
f349065e KN |
86 | SCM x = *sp; |
87 | PUSH (x); | |
26403690 KN |
88 | NEXT; |
89 | } | |
90 | ||
17e90c5e KN |
91 | \f |
92 | /* | |
93 | * Object creation | |
94 | */ | |
a98cef7e | 95 | |
46cd9a34 | 96 | VM_DEFINE_INSTRUCTION (void, "void", 0, 0, 1) |
a98cef7e | 97 | { |
17e90c5e | 98 | PUSH (SCM_UNSPECIFIED); |
a98cef7e KN |
99 | NEXT; |
100 | } | |
101 | ||
46cd9a34 | 102 | VM_DEFINE_INSTRUCTION (make_true, "make-true", 0, 0, 1) |
a98cef7e | 103 | { |
17e90c5e | 104 | PUSH (SCM_BOOL_T); |
a98cef7e KN |
105 | NEXT; |
106 | } | |
107 | ||
46cd9a34 | 108 | VM_DEFINE_INSTRUCTION (make_false, "make-false", 0, 0, 1) |
a98cef7e | 109 | { |
17e90c5e | 110 | PUSH (SCM_BOOL_F); |
a98cef7e KN |
111 | NEXT; |
112 | } | |
113 | ||
46cd9a34 | 114 | VM_DEFINE_INSTRUCTION (make_eol, "make-eol", 0, 0, 1) |
a98cef7e | 115 | { |
17e90c5e | 116 | PUSH (SCM_EOL); |
a98cef7e KN |
117 | NEXT; |
118 | } | |
119 | ||
46cd9a34 | 120 | VM_DEFINE_INSTRUCTION (make_int8, "make-int8", 1, 0, 1) |
a98cef7e | 121 | { |
2d80426a | 122 | PUSH (SCM_I_MAKINUM ((signed char) FETCH ())); |
a98cef7e KN |
123 | NEXT; |
124 | } | |
125 | ||
46cd9a34 | 126 | VM_DEFINE_INSTRUCTION (make_int8_0, "make-int8:0", 0, 0, 1) |
a98cef7e | 127 | { |
238e7a11 | 128 | PUSH (SCM_INUM0); |
a98cef7e KN |
129 | NEXT; |
130 | } | |
131 | ||
46cd9a34 | 132 | VM_DEFINE_INSTRUCTION (make_int8_1, "make-int8:1", 0, 0, 1) |
a98cef7e | 133 | { |
238e7a11 | 134 | PUSH (SCM_I_MAKINUM (1)); |
a98cef7e KN |
135 | NEXT; |
136 | } | |
137 | ||
46cd9a34 | 138 | VM_DEFINE_INSTRUCTION (make_int16, "make-int16", 2, 0, 1) |
a98cef7e | 139 | { |
ea9b4b29 KN |
140 | int h = FETCH (); |
141 | int l = FETCH (); | |
2d80426a | 142 | PUSH (SCM_I_MAKINUM ((signed short) (h << 8) + l)); |
a98cef7e KN |
143 | NEXT; |
144 | } | |
145 | ||
46cd9a34 | 146 | VM_DEFINE_INSTRUCTION (make_char8, "make-char8", 1, 0, 1) |
a98cef7e | 147 | { |
17e90c5e | 148 | PUSH (SCM_MAKE_CHAR (FETCH ())); |
a98cef7e KN |
149 | NEXT; |
150 | } | |
151 | ||
cb4cca12 KN |
152 | VM_DEFINE_INSTRUCTION (list, "list", 1, -1, 1) |
153 | { | |
154 | int n = FETCH (); | |
155 | POP_LIST (n); | |
156 | NEXT; | |
157 | } | |
158 | ||
159 | VM_DEFINE_INSTRUCTION (vector, "vector", 1, -1, 1) | |
160 | { | |
161 | int n = FETCH (); | |
162 | POP_LIST (n); | |
163 | *sp = scm_vector (*sp); | |
164 | NEXT; | |
165 | } | |
166 | ||
167 | VM_DEFINE_INSTRUCTION (list_mark, "list-mark", 0, 0, 0) | |
168 | { | |
169 | POP_LIST_MARK (); | |
170 | NEXT; | |
171 | } | |
172 | ||
173 | VM_DEFINE_INSTRUCTION (vector_mark, "vector-mark", 0, 0, 0) | |
174 | { | |
175 | POP_LIST_MARK (); | |
176 | *sp = scm_vector (*sp); | |
177 | NEXT; | |
178 | } | |
179 | ||
180 | VM_DEFINE_INSTRUCTION (list_break, "list-break", 0, 0, 0) | |
181 | { | |
182 | SCM l; | |
183 | POP (l); | |
184 | for (; !SCM_NULLP (l); l = SCM_CDR (l)) | |
185 | PUSH (SCM_CAR (l)); | |
186 | NEXT; | |
187 | } | |
188 | ||
a98cef7e KN |
189 | \f |
190 | /* | |
17e90c5e | 191 | * Variable access |
a98cef7e KN |
192 | */ |
193 | ||
17e90c5e KN |
194 | #define OBJECT_REF(i) objects[i] |
195 | #define OBJECT_SET(i,o) objects[i] = o | |
a98cef7e | 196 | |
af988bbf KN |
197 | #define LOCAL_REF(i) SCM_FRAME_VARIABLE (fp, i) |
198 | #define LOCAL_SET(i,o) SCM_FRAME_VARIABLE (fp, i) = o | |
a98cef7e | 199 | |
2d80426a LC |
200 | /* For the variable operations, we _must_ obviously avoid function calls to |
201 | `scm_variable_ref ()', `scm_variable_bound_p ()' and friends which do | |
202 | nothing more than the corresponding macros. */ | |
203 | #define VARIABLE_REF(v) SCM_VARIABLE_REF (v) | |
204 | #define VARIABLE_SET(v,o) SCM_VARIABLE_SET (v, o) | |
205 | #define VARIABLE_BOUNDP(v) (VARIABLE_REF (v) != SCM_UNDEFINED) | |
a98cef7e | 206 | |
17e90c5e | 207 | /* ref */ |
a98cef7e | 208 | |
46cd9a34 | 209 | VM_DEFINE_INSTRUCTION (object_ref, "object-ref", 1, 0, 1) |
a98cef7e | 210 | { |
17e90c5e KN |
211 | PUSH (OBJECT_REF (FETCH ())); |
212 | NEXT; | |
a98cef7e KN |
213 | } |
214 | ||
46cd9a34 | 215 | VM_DEFINE_INSTRUCTION (local_ref, "local-ref", 1, 0, 1) |
a98cef7e | 216 | { |
17e90c5e KN |
217 | PUSH (LOCAL_REF (FETCH ())); |
218 | NEXT; | |
a98cef7e KN |
219 | } |
220 | ||
46cd9a34 | 221 | VM_DEFINE_INSTRUCTION (external_ref, "external-ref", 1, 0, 1) |
a98cef7e | 222 | { |
17e90c5e KN |
223 | unsigned int i; |
224 | SCM e = external; | |
225 | for (i = FETCH (); i; i--) | |
2a63758b KN |
226 | { |
227 | CHECK_EXTERNAL(e); | |
228 | e = SCM_CDR (e); | |
229 | } | |
230 | CHECK_EXTERNAL(e); | |
17e90c5e | 231 | PUSH (SCM_CAR (e)); |
a98cef7e KN |
232 | NEXT; |
233 | } | |
234 | ||
46cd9a34 | 235 | VM_DEFINE_INSTRUCTION (variable_ref, "variable-ref", 0, 0, 1) |
a98cef7e | 236 | { |
17e90c5e | 237 | SCM x = *sp; |
238e7a11 | 238 | |
2d80426a | 239 | if (!VARIABLE_BOUNDP (x)) |
17e90c5e | 240 | { |
238e7a11 LC |
241 | err_args = SCM_LIST1 (x); |
242 | /* Was: err_args = SCM_LIST1 (SCM_CAR (x)); */ | |
17e90c5e KN |
243 | goto vm_error_unbound; |
244 | } | |
238e7a11 LC |
245 | else |
246 | { | |
2d80426a | 247 | SCM o = VARIABLE_REF (x); |
238e7a11 LC |
248 | *sp = o; |
249 | } | |
250 | ||
a98cef7e KN |
251 | NEXT; |
252 | } | |
253 | ||
17e90c5e KN |
254 | /* set */ |
255 | ||
46cd9a34 | 256 | VM_DEFINE_INSTRUCTION (local_set, "local-set", 1, 1, 0) |
a98cef7e | 257 | { |
17e90c5e KN |
258 | LOCAL_SET (FETCH (), *sp); |
259 | DROP (); | |
a98cef7e KN |
260 | NEXT; |
261 | } | |
262 | ||
46cd9a34 | 263 | VM_DEFINE_INSTRUCTION (external_set, "external-set", 1, 1, 0) |
a98cef7e | 264 | { |
17e90c5e KN |
265 | unsigned int i; |
266 | SCM e = external; | |
267 | for (i = FETCH (); i; i--) | |
ac02b386 KN |
268 | { |
269 | CHECK_EXTERNAL(e); | |
270 | e = SCM_CDR (e); | |
271 | } | |
272 | CHECK_EXTERNAL(e); | |
17e90c5e KN |
273 | SCM_SETCAR (e, *sp); |
274 | DROP (); | |
a98cef7e KN |
275 | NEXT; |
276 | } | |
277 | ||
46cd9a34 | 278 | VM_DEFINE_INSTRUCTION (variable_set, "variable-set", 0, 1, 0) |
a98cef7e | 279 | { |
2d80426a | 280 | VARIABLE_SET (sp[0], sp[-1]); |
3616e9e9 KN |
281 | scm_set_object_property_x (sp[-1], scm_sym_name, SCM_CAR (sp[0])); |
282 | sp -= 2; | |
a98cef7e KN |
283 | NEXT; |
284 | } | |
285 | ||
286 | \f | |
287 | /* | |
288 | * branch and jump | |
289 | */ | |
290 | ||
17e90c5e KN |
291 | #define BR(p) \ |
292 | { \ | |
41f248a8 KN |
293 | int h = FETCH (); \ |
294 | int l = FETCH (); \ | |
295 | signed short offset = (h << 8) + l; \ | |
17e90c5e KN |
296 | if (p) \ |
297 | ip += offset; \ | |
298 | DROP (); \ | |
299 | NEXT; \ | |
300 | } | |
301 | ||
41f248a8 KN |
302 | VM_DEFINE_INSTRUCTION (br, "br", 2, 0, 0) |
303 | { | |
304 | int h = FETCH (); | |
305 | int l = FETCH (); | |
306 | ip += (signed short) (h << 8) + l; | |
307 | NEXT; | |
308 | } | |
309 | ||
310 | VM_DEFINE_INSTRUCTION (br_if, "br-if", 2, 0, 0) | |
a98cef7e | 311 | { |
17e90c5e | 312 | BR (!SCM_FALSEP (*sp)); |
a98cef7e KN |
313 | } |
314 | ||
41f248a8 | 315 | VM_DEFINE_INSTRUCTION (br_if_not, "br-if-not", 2, 0, 0) |
a98cef7e | 316 | { |
17e90c5e | 317 | BR (SCM_FALSEP (*sp)); |
a98cef7e KN |
318 | } |
319 | ||
41f248a8 | 320 | VM_DEFINE_INSTRUCTION (br_if_eq, "br-if-eq", 2, 0, 0) |
a98cef7e | 321 | { |
17e90c5e | 322 | BR (SCM_EQ_P (sp[0], sp--[1])); |
a98cef7e KN |
323 | } |
324 | ||
41f248a8 | 325 | VM_DEFINE_INSTRUCTION (br_if_not_eq, "br-if-not-eq", 2, 0, 0) |
a98cef7e | 326 | { |
17e90c5e KN |
327 | BR (!SCM_EQ_P (sp[0], sp--[1])); |
328 | } | |
329 | ||
41f248a8 | 330 | VM_DEFINE_INSTRUCTION (br_if_null, "br-if-null", 2, 0, 0) |
17e90c5e KN |
331 | { |
332 | BR (SCM_NULLP (*sp)); | |
333 | } | |
334 | ||
41f248a8 | 335 | VM_DEFINE_INSTRUCTION (br_if_not_null, "br-if-not-null", 2, 0, 0) |
17e90c5e KN |
336 | { |
337 | BR (!SCM_NULLP (*sp)); | |
a98cef7e KN |
338 | } |
339 | ||
a98cef7e KN |
340 | \f |
341 | /* | |
342 | * Subprogram call | |
343 | */ | |
344 | ||
46cd9a34 | 345 | VM_DEFINE_INSTRUCTION (make_closure, "make-closure", 0, 1, 1) |
a98cef7e | 346 | { |
3d5ee0cd KN |
347 | SYNC_BEFORE_GC (); |
348 | *sp = scm_c_make_closure (*sp, external); | |
17e90c5e | 349 | NEXT; |
a98cef7e KN |
350 | } |
351 | ||
46cd9a34 | 352 | VM_DEFINE_INSTRUCTION (call, "call", 1, -1, 1) |
a98cef7e | 353 | { |
3616e9e9 | 354 | SCM x; |
17e90c5e | 355 | nargs = FETCH (); |
a98cef7e KN |
356 | |
357 | vm_call: | |
c8b9df71 KN |
358 | x = sp[-nargs]; |
359 | ||
a98cef7e KN |
360 | /* |
361 | * Subprogram call | |
362 | */ | |
3616e9e9 | 363 | if (SCM_PROGRAM_P (x)) |
a98cef7e | 364 | { |
3616e9e9 | 365 | program = x; |
3d5ee0cd | 366 | vm_call_program: |
499a4c07 | 367 | CACHE_PROGRAM (); |
17e90c5e KN |
368 | INIT_ARGS (); |
369 | NEW_FRAME (); | |
17e90c5e KN |
370 | ENTER_HOOK (); |
371 | APPLY_HOOK (); | |
a98cef7e KN |
372 | NEXT; |
373 | } | |
374 | /* | |
375 | * Function call | |
376 | */ | |
3616e9e9 | 377 | if (!SCM_FALSEP (scm_procedure_p (x))) |
a98cef7e | 378 | { |
f41cb00c LC |
379 | /* At this point, the stack contains the procedure and each one of its |
380 | arguments. */ | |
f21dfea6 | 381 | SCM args; |
f41cb00c | 382 | |
135b32ee | 383 | #if 1 |
17e90c5e | 384 | POP_LIST (nargs); |
135b32ee LC |
385 | #else |
386 | /* Experimental: Build the arglist on the VM stack. XXX */ | |
387 | POP_LIST_ON_STACK (nargs); | |
388 | #endif | |
f21dfea6 KN |
389 | POP (args); |
390 | *sp = scm_apply (x, args, SCM_EOL); | |
17e90c5e | 391 | NEXT; |
a98cef7e KN |
392 | } |
393 | /* | |
394 | * Continuation call | |
395 | */ | |
3616e9e9 | 396 | if (SCM_VM_CONT_P (x)) |
a98cef7e KN |
397 | { |
398 | vm_call_cc: | |
399 | /* Check the number of arguments */ | |
382693fe | 400 | if (nargs != 1) |
3616e9e9 | 401 | scm_wrong_num_args (x); |
a98cef7e KN |
402 | |
403 | /* Reinstate the continuation */ | |
17e90c5e | 404 | EXIT_HOOK (); |
3616e9e9 | 405 | reinstate_vm_cont (vp, x); |
3d5ee0cd | 406 | CACHE_REGISTER (); |
af988bbf | 407 | program = SCM_FRAME_PROGRAM (fp); |
3616e9e9 | 408 | CACHE_PROGRAM (); |
a98cef7e KN |
409 | NEXT; |
410 | } | |
411 | ||
66292535 | 412 | program = x; |
17e90c5e | 413 | goto vm_error_wrong_type_apply; |
a98cef7e KN |
414 | } |
415 | ||
46cd9a34 | 416 | VM_DEFINE_INSTRUCTION (tail_call, "tail-call", 1, -1, 1) |
a98cef7e | 417 | { |
f41cb00c | 418 | register SCM x; |
17e90c5e | 419 | nargs = FETCH (); |
3616e9e9 | 420 | x = sp[-nargs]; |
17e90c5e KN |
421 | |
422 | SCM_TICK; /* allow interrupt here */ | |
a98cef7e KN |
423 | |
424 | /* | |
17e90c5e | 425 | * Tail recursive call |
a98cef7e | 426 | */ |
17e90c5e | 427 | if (SCM_EQ_P (x, program)) |
a98cef7e | 428 | { |
f21dfea6 | 429 | int i; |
17e90c5e KN |
430 | |
431 | /* Move arguments */ | |
f21dfea6 KN |
432 | INIT_ARGS (); |
433 | sp -= bp->nargs - 1; | |
434 | for (i = 0; i < bp->nargs; i++) | |
435 | LOCAL_SET (i, sp[i]); | |
f41cb00c LC |
436 | |
437 | /* Drop the first argument and the program itself. */ | |
438 | sp -= 2; | |
a98cef7e | 439 | |
f21dfea6 | 440 | /* Call itself */ |
17e90c5e | 441 | ip = bp->base; |
17e90c5e | 442 | APPLY_HOOK (); |
a98cef7e KN |
443 | NEXT; |
444 | } | |
17e90c5e KN |
445 | /* |
446 | * Proper tail call | |
447 | */ | |
3616e9e9 | 448 | if (SCM_PROGRAM_P (x)) |
17e90c5e | 449 | { |
17e90c5e KN |
450 | EXIT_HOOK (); |
451 | FREE_FRAME (); | |
3616e9e9 | 452 | program = x; |
3d5ee0cd | 453 | goto vm_call_program; |
17e90c5e | 454 | } |
a98cef7e KN |
455 | /* |
456 | * Function call | |
457 | */ | |
3616e9e9 | 458 | if (!SCM_FALSEP (scm_procedure_p (x))) |
a98cef7e | 459 | { |
f21dfea6 | 460 | SCM args; |
17e90c5e | 461 | POP_LIST (nargs); |
f21dfea6 KN |
462 | POP (args); |
463 | *sp = scm_apply (x, args, SCM_EOL); | |
a98cef7e KN |
464 | goto vm_return; |
465 | } | |
466 | /* | |
467 | * Continuation call | |
468 | */ | |
3616e9e9 | 469 | if (SCM_VM_CONT_P (x)) |
a98cef7e KN |
470 | goto vm_call_cc; |
471 | ||
66292535 | 472 | program = x; |
17e90c5e KN |
473 | goto vm_error_wrong_type_apply; |
474 | } | |
475 | ||
3616e9e9 KN |
476 | VM_DEFINE_INSTRUCTION (apply, "apply", 1, -1, 1) |
477 | { | |
c8b9df71 KN |
478 | int len; |
479 | SCM ls; | |
480 | POP (ls); | |
481 | ||
482 | nargs = FETCH (); | |
483 | if (nargs < 2) | |
484 | goto vm_error_wrong_num_args; | |
485 | ||
486 | len = scm_ilength (ls); | |
487 | if (len < 0) | |
488 | goto vm_error_wrong_type_arg; | |
489 | ||
490 | for (; !SCM_NULLP (ls); ls = SCM_CDR (ls)) | |
491 | PUSH (SCM_CAR (ls)); | |
492 | ||
493 | nargs += len - 2; | |
494 | goto vm_call; | |
3616e9e9 KN |
495 | } |
496 | ||
46cd9a34 | 497 | VM_DEFINE_INSTRUCTION (call_cc, "call/cc", 1, 1, 1) |
17e90c5e | 498 | { |
3d5ee0cd KN |
499 | SYNC_BEFORE_GC (); |
500 | PUSH (capture_vm_cont (vp)); | |
17e90c5e KN |
501 | POP (program); |
502 | nargs = 1; | |
503 | goto vm_call; | |
a98cef7e KN |
504 | } |
505 | ||
46cd9a34 | 506 | VM_DEFINE_INSTRUCTION (return, "return", 0, 0, 1) |
a98cef7e | 507 | { |
a98cef7e | 508 | vm_return: |
17e90c5e KN |
509 | EXIT_HOOK (); |
510 | RETURN_HOOK (); | |
511 | FREE_FRAME (); | |
512 | ||
15df3447 | 513 | /* Restore the last program */ |
af988bbf | 514 | program = SCM_FRAME_PROGRAM (fp); |
499a4c07 | 515 | CACHE_PROGRAM (); |
af988bbf | 516 | CACHE_EXTERNAL (); |
a98cef7e KN |
517 | NEXT; |
518 | } | |
17e90c5e | 519 | |
17e90c5e KN |
520 | /* |
521 | Local Variables: | |
522 | c-file-style: "gnu" | |
523 | End: | |
524 | */ |